|Subject:||Re: [Discuss-gnuradio] Qt installation|
|Date:||Thu, 31 Mar 2016 12:47:25 -0400|
On Thu, Mar 31, 2016 at 12:00 PM, Alexander Levedahl <address@hidden> wrote:Hello,The GnuRadio version is 184.108.40.206. I am trying to upgrade our version of gnuradio. We have a GUI that I have to make extensive modifications to and decided to switch from Wx to Qt since that is the recommended path going forward.
The OS is RHEL6.5. I have to download and install packages manually. This is not something I can get around.
pkg-config does not report anything for qwt. Does the line find_package(Qwt) in the gr-qtgui/CMakeLists.txt check the pkg-config list?No, QWT does not install a .pc file (and I've no idea why they won't).Currently I have qwt6.1.2 installed. The directory qwt-6.1.2 was installed in /usr/local/lib64/. There is a shared object in there. I made a symlink to one of them from a directory in LD_LIBRARY_PATH.Do you have the devel package installed, too? That is, the header files in /usr/local/include? You can try to add this to the cmake command line to force them to be found:-DQWT_LIBRARIES=/usr/local/lib64/libqwt.so-DQWT_INCLUDE_DIRS=/usr/local/include(I'm assuming that's the correct include path based on your library path.)At the moment, I think I will hold off on installing PyQwt since it is unnecessary per Tom, and I do not need it.Yes, don't worry about that.Final thought. Have you tried to install GNU Radio using PyBOMBS? I know the original PyBOMBS worked fine on older RedHat installations, though I'm not positive that anyone's tried the new version on it.TomThanks,AlexOn Thu, Mar 31, 2016 at 9:44 AM, Tom Rondeau <address@hidden> wrote:On Thu, Mar 31, 2016 at 9:40 AM, Marcus Müller <address@hidden> wrote:Hi Alex,
yes, Qwt is necessary; what OS are you on?
Qwt is kind of a problem child; we need Qwt-qt4, in a version somewhere between 5.2 and 6.2.0.
If you're on Linux (which distro?), what does
pkg-config --list-all|grep -i qwt
When do you get that error, and could you share it with a bit of context in verbatim?
¹ Mine tells me there's
qwt5-qt4 qwt5-qt4 - Qt Widgets for Technical Applications
qwt Qwt6 - Qt Widgets for Technical Applications
qwtmathml qwtmathml - Qwt MathML rendererYes, QWT is required, but PyQWT is no longer necessary. What version of GNU Radio are you trying to build?The gr_filter_design tool still uses PyQWT, so you won't be able to run that, but gr-qtgui can be built and run fine without it.TomOn 31.03.2016 15:31, Alexander Levedahl wrote:
I was able to install PyQt. When I attempted to build gnuradio, it complained that it could not find PyQwt and refused to build the gr-qtgui component. The gnuradio website gives the impression it is not necessary. When I attempted to install Qwt, I got an error QT_STATIC_CONST. I believe that is a necessary step to installing PyQwt.
Is PyQwt necessary to install the gr-qtgui component? If so, has anyone experienced this issue before?
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